Paper cutting scissors

In paper-cutting, "Yang Jian" focuses on the first line, keeping the modeling line and cutting off other parts. The threads of the male scissors are connected by threads. Yang cutting is to keep the shape and cut off the outside. This is called orthomorphism.

The "negative scissors" in paper-cutting is mainly one piece, so cut off the lines of modeling. The line of negative shear is a broken line, and negative shear is to cut the shape empty, which is called negative shape.

A good paper-cut work is mostly treated by combining female scissors with male scissors.

The avatar in the middle of the picture mainly adopts Yang Jian; The following text uses negative scissors.